Electronics > Projects, Designs, and Technical Stuff
H-bridge DC motor driver with OPAMP as gate driver?
<< < (5/5)
Zero999:
The example shown above is for a device with an open emitter output, which can only pull-up. The LM393 has an open collector output, so the circuit needs to be modified accordingly.
Yansi:
If you go this far with boosting the output stage, why not simply  gtfo with the comparator and replace it with just a single small signal n-mos transistor with much better result?
David Hess:

--- Quote from: Yansi on June 28, 2019, 07:07:48 am ---If you go this far with boosting the output stage, why not simply  gtfo with the comparator and replace it with just a single small signal n-mos transistor with much better result?
--- End quote ---

I assumed there was some issue with the input voltage threshold needing to be more precise than the Vgs of a MOSFET would be.
ArthurWozniak:
Hey,

Do you consider use DRV family?
There are complete solutions for small current DC motors such yours
If not, IR2104 gate driver is awesome

Best regards,
Navigation
Message Index
Previous page
There was an error while thanking
Thanking...

Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod